package com.icode.gulimall.member.excption;

/**
 * @Author: my_code
 * @Email: my_code@foxmail.com
 * @Create: 2021-01-04 15:08
 */
public class UserNameExistException extends RuntimeException{
    public UserNameExistException() {
        super("用户名已存在");
    }
}
